Cooling Fan Control Circuit Low

P0480 - COOLING FAN CONTROL CIRCUIT LOW





When Monitored and Set Condition

- When Monitored: With the engine running.
- Set Condition: When Engine Coolant temperature is less than 70°C (158°F) and the Powertrain Control Module (PCM) senses voltage less than 2.0 volts above 85°C (185°F).





For a complete Powertrain Control Module Circuit Diagram, Schematics and Diagrams.

Diagnostic Test

1. CHECK FOR CURRENT DTC
Turn the ignition on.
With the scan tool, read PCM DTCs.
Is this DTC present?

Yes

- For complete diagnosis of this DTC, refer to (P0480) COOLING FAN CONTROL CIRCUIT. Cooling Fan Control Circuit

No

- Go To 2

2. INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.

NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs.Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits.

NOTE: Check for any Technical Service Bulletins that may apply.

Were there any problems found?

Yes

- Repair as necessary.
- Perform POWERTRAIN VERIFICATION TEST - VER 2. Powertrain Verification Test

No

- The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.